Fiber – optic cable OKLm armoured by corrugated steel tape for installation in cable ducts, without inner polyethylene jacket.
OKLm cable is designed for installation in cable ducts, tubes, tunnels. OKLm with flame retardant jacket is designed for installation according to exclusive standards of fire safety.
Loose tube cable. Central strength member made of fiber reinforced plastic (FRP).Polymer tubes and plastic fillers are SZ-stranded around central strength member. Optical fibers are placed inside polymer tubes. Interstice inside and between tubes is filled with hydrophobic filler. Cable core is wrapped by yarns. PET-tape is imposed on the cable core. An armour from a corrugated steel tape is formed around cable core with jacket of high density polyethylene extruded over the armour. In case of exclusive standards of fire safety cable jacket is made of flame retardant halogen free (HF) compound.
On customer’s request cable design can have following options:
|Number of fibers||2-32||34-48||50-80||82-96||98-144|
|Number of polymer tubes||4||6||5||6||6|
|Number of optical fibers in a tube||up to 8||up to 8||up to 16||up to 16||up to 24|
|Nominal overall diameter, mm||10,1||11,0||11,8||12,5||15,5|
|Total mass of cable with polyethylene jacket, kg/km||94||116||126||145||208|
|Total mass of cable with flame retardant (HF) jacket, kg/km||118||144||157||179||254|
|Temperature range of operation, С°||-60… +70|
|Temperature range of installation, С°||-10… +50|
|Transport, storage, С°||-50… +50|
|Minimal bending radius||not less than 20 diameters|
|Guarantee exploitation||2 years after putting in operation, not more than 2,5 years from shipping date|
|Tensile strength||from 1,5 kN to 2,7 kN|
|Crush strength||not less than 3 kN/100 mm|